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2986949 = 7426707
BaseRepresentation
bin1011011001001111000101
312121202022202
423121033011
51231040244
6144004245
734250210
oct13311705
95552282
102986949
111760159
121000685
13807734
1457a777
153e004e
hex2d93c5

2986949 has 4 divisors (see below), whose sum is σ = 3413664. Its totient is φ = 2560236.

The previous prime is 2986939. The next prime is 2986957. The reversal of 2986949 is 9496892.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2986949 - 220 = 1938373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2986939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213347 + ... + 213360.

It is an arithmetic number, because the mean of its divisors is an integer number (853416).

22986949 is an apocalyptic number.

It is an amenable number.

2986949 is a deficient number, since it is larger than the sum of its proper divisors (426715).

2986949 is an equidigital number, since it uses as much as digits as its factorization.

2986949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426714.

The product of its digits is 279936, while the sum is 47.

The square root of 2986949 is about 1728.2792019810. The cubic root of 2986949 is about 144.0155108035.

The spelling of 2986949 in words is "two million, nine hundred eighty-six thousand, nine hundred forty-nine".

Divisors: 1 7 426707 2986949